Power-feeder.



. VlATEmTEE SEPT. 15, 1603. J. M. SCHUTZ. POWER FEEDER. APPLICATION FI'LED MAY 10, 1900.

l 2 sEEETs-sEEET 1.

H0 MODEL.

...ell

. No. 739,228. -Y EATENTED SEPT. 15, 190.3.

J. M. soEUTz. POWER EEEDEE APPLmAT'IoN EILED nu 1o, 1900. f

No MODEL. 'SHBETs-SEEET' 2.

Naveaeas.

`lNfITE ,i TATESS;

l 'Patented September 15, 1903.

.IOSEPH M. SCHUTZ, or MINNEAPOLIS, MINNESOTA, ASSIeNoR To SCHUTZ- ONEILL COMPANY, OE MINNEAPOLIS, MINNESOTA, A CORPORATION OE MINNESOTA. i l

SPECIFICATION forming part of Letters Patent No. 739,228, dated September 15,

i Application filed May 10, 1900. Serial No. 16,115". (No model.)

.To @ZZ whom it may concern:

Be it known that I, JOSEPH M. SCHUTZ, of the city of Minneapolis, county of Hennepin,

State of Minnesota, have `invented certain materials of various kinds to machines where-H in the material is to be treated.

feeder that will be positive, exact,and regular in its operation and which will be vari-` able at will while running.

A further object of the invention is to pro.-

`It Vide a feeder which may be used for delivering practically any sort ofmaterial toits as-I sociated machine and which willbe of the most simple construction, thoroughly durable, and easy running.

vide a combined feeder and magnetic separator.

Theinvention consists in a hopper,in combination with a swinging bottom therefor,

2 5 and a driving mechanism connected with said swinging bottom, whereby thebottom is oscillated and reciprocated beneath the hopper` to regularly discharge, the contents thereof;

and, further, the invention consistsin par-1 Y3o ticular constructionsi and .combinations 4of parts, all as hereinafter described, and particularly pointed out in the claims.

The invention will be more readily understood by reference to the accompanying drawings, in which* Figure 1 is a side elevation of a feeder embodying my invention. Fig. 2 is a Vertical section thereof, one half on the line .m of Fig. l and one half on the lineg/ y. of Fig. 1, 4o also indicated by the irregular section-line my my of Fig. 4. Fig. 3 is a vertical section'` on the line mof Fig. 1. Fig. 4 is a plan View of the feeder-base with the hopper and Another object of the' invention is topro' ,bearings are integral with the base. tupperparts are formed in the brackets 5, that depend from the sides of the hopper 6.

. `Thetop of the base is open, and at the tops of the sides thereof are the bearings 4 4, upon opposite sides. The lower parts of these The l'lhe hOpper extends down into the base a conjsiderable distance below the bearings 4, and

lthebottom ofthe hopper isvopen. The object of the invention is to'provide a,4 i

Beneath the hopper and in the base is the 6o neath the hopper the material will notspill ,over the ,ends oredges of the bottom 7. The `bottom or feed-board 7 iscurved in the `arc of a circle having the center of the bearings jslightly below the lower edges of the hopper,

4 as its center. The4 bottom 7 is, as showin,

leavingquite a; large discharge-opening at leachend, which Opening may be increased or decreased by adjusting the endfplates or gates 8 S upon the hopper and held by thumb-pY screws 9. The curvedbottom 7Ais supported by the dependingarms 10, secured to the linner end of the shaft-sectionsll `11, that are` `in the bearings 4. `The arms 10 are provided Kwith the extended wings or anges 1:2, which prevent the spilling of the material from the sides of the bottom 7.

As shown in the draw ings,l` prefer tomake lthe curved bottom 7 and the arms 10 integral `in a single casting, which servesto join the sections ofthe shaft 11`and avoids the use of 85 bolts or screws which might get loose.

. 13 represents a cross-bar or low partition provided in the bottomof the hopper. `The `bar 13is held by lugs 14upon the inner sides` of the downwardly-extended sides 6 of thefgo hopper, and the bar may` rest upon the top of the curved bottom 7. One section of the shaft 11 is longer than the other and carries the Crank-armV 15, by which the'bottom is os- ;cillated. For operating the crank-arm, shaft,

`and bottom 7 I provide the link 16, the conjnecting-rods 17, and the crank wheel or disk 18.` Said wheel 18 is driven at asuitable speed. It is mounted upon a stud 19, extending from the side of the base 2, and the wheel `roo 3o in any of the positions from carries the crank-pin 20, on which the end of the connecting-rod 17 is journaled to be moved back and forth thereby. The pivot 21 between the parts 16 and 17 is provided with an inwardly-projecting end, preferably a roller 22, that plays between the parallel iianges 23 23 of the movable cam 24. This cam is carried upon the stud 25, extending from the base 2, and is provided with a hand-le- Io ver 26', by which the angle of the cam may be adjusted with respect to a line drawn through the center of the studs 19 and 25. The cam surfaces or flanges 23 are curved in arcs the radii of `which correspond to the I5 Vlength of the link 16, so that the upper pivot 26 of the link 16 will be concentric with the cam-surfaces when the cam is'moved so thatl base 2 is provided with roughened or ratchetl 25 surface 27, with which a spring-button 28 on the lever 26 engages to lock said lever and the cam in any desired position. This surface is of such extent and arrangement as to permit the cam to be thrown to and locked a full stop to the maximum throw. j The magnetic separator is arranged directly beneath the bottom of the hopper and within the base 2, and it is made upl of a number of alternatively-placed permanent magnets 29 29.- These are arranged at convenient distances apart and are held between brass bars 30, the ends of which rest in seats 31, provided therefor in the sides of the base. 4o The bars are of about the same length as the bottom 7 and of greater length than the bottom of the hopper, and all of the material' that falls from the ends of the bottom 7 must fall upon the ends of the magnets.

The operation of the machine is as follows:

The nature of the material to be handled governs the adjustment. of the gates 8. If the material is fine, these gates are dropped quite close to the swinging bottom 7, while if the 5o material is coarse the gates are raised. The hopper being filled with material the same will spread out somewhat on the bottom 7, and when 'said bottom is reciprocated its ends will be alternately withdrawn from beneath the material. l In this manneralimited amount ofthe material is dropped into the space beneath the swinging bottom at each stroke of the swinging bottom. As the material falls upon the magnetic separator any particles of 6o magnetic material will adhere thereto and will be prevented from passing into the associated machine. The grating of bar-magnets rests in the seats 31 of the base,` being held by its own weight, and may be removed at any time through the top of the base-without :disturbing the hopper. Where the kind and condition of the material to be treated and where the capacity of the associated machine is constant, the bottom 7 may be operated at a fixed speed and with a fixed length of stroke;

butthese conditions are unusual, and it is a belt extending from some part of the machine with which the feeder is associated. As this wheel is rotated the connecting-rod is driven back and forth in the cam. If this cam is inclined with respect to the connect` ing-rod, the end of the rod will be alternately lifted and depressed. -This movement is cornmunicated to the arm 15, shaft l1, and bottoni 7 through the link 16. When the cam is substantially1 parallel with the connecting-rod 17, the end thereof willmerely play back and forth in an arc that is concentric with the upper end of the link 16, so that the link will swing from side to side without moving the crank-arm 15 or the bottom 7. The hand-lever 26 may be thrown into the left-,hand dotted position, Fig. 1, and the movement of the swinging bottom will be stopped, while the wheel 18 continues to run. ver and the cam are moved from the stationary left-hand position the cam will be given an angular position, and the swinging bottom or feed-board 7 will be set in motion, with the stroke corresponding tothe degree of angularity of the cam. The.maximum angle of the cam gives the maximum stroke to the bottom. I prefer that the maximum angle of the cam shall not exceed forty-tive degrees. It is usually less. In order to avoid undue friction between the cam and the traveling pivot, I provide roller 22, serving as the slideblock therein.

When the machine is employed to feed very light material, the cross-bar or partition 13 may sometimes be omitted, as there is less tendency for the light material to carry with the swinging bottom.

A marked advantage of my invention lies in the fact that as the bottom 7is curved and swings in an arc of a circle there is no tendency therein to lift the material in the hopper, resulting in a marked saving of power.

Another advantage that may be claimed for the machine is that there are no hidden bolts, screws, or rivets that can get loose and drop into the grinding or other machine.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- As the hand-1e-V 1. The combination of the hopper provided ends of said shaft in the space between the hopper and base, substantially as described.

2. The combination with the hopper provided with the downwardly-extending brackets forming the tops of the journal-boxes, of the base forming the bottoms of said journalboxes, the shafts working in said journalboxes, the curved bottom swinging under said hopper, and the wings connecting the said bottom with the inner ends of said shafts and extending between the hopper and base, substantially as described.

3. The combination of the swinging bottom 7, the hopper 6, the base 2, formed with the seats 3l and the gratings, of magnets 29 removably held in said seats.

4. The combination with the base 2, the hopper 6, and the swinging bottom 7., of the pivotal supports 11 forsaid bottom, the crankarm 15 connected'to one of said supports, the link 16, the connecting-rod 17, and the throwcam 24 for controlling the rocking of said bottom, substantially as described.

5. The combination with the base 2, the hopper 6 and the swinging bottom 7, of the pivotal support l1, for said bottom, the crankarm 15 attached to one of said supports, the link 16, the connecting-rod 17, the cam 24, the rol1er'22 moving thereon, the lever 26 for moving said cam, and the ratchet-surface 27,

forming the tops of the journal-boxes, and

the base 2 forming the bottom'of said journalboxes, the shafts 11 working in said journalboxes, the curved bottom 7, the wings 12 connecting said bottom to the inner ends of said shafts in the spacebetween the hopper and base, the magnets located below said curved bottom, and means for moving the curved bottom over the magnets.

7. The combination of the base 2 with the hopper supported thereby, the curved bottom 7 swinging beneath said hopper, adjustable sides for said hopper, said hopper having lugs 14 and the partition 13 held between said lugs let' and resting upon said curved bottom by which the weight of said partition 13 is carried, substantially as described.

In witness whereof I have hereunto set my hand at Minneapolislvlinnesota, this 5th day of May, 1900.

JosEPI-I M. SCHUTZ.

In presence ot'- C. G. HAWLEY, M. E. GooLEY. 

